the Digital Timer(not Include Battery)has a Large Display & Three Buttons, Super Easy to Read & Set Up. Ideal for Those with Poor Eyesight. Featuring a Large LCD Display, It Ensures Clear Transparent Number Visibility & Difficult to Break. Its Small Size & Light Body Make It Pocket-portable. Countdown Timers Are Extensively Used in Break Time, Cooking, Beauty Facials, Gyms, Sports, Medicine Time, Meetings, Classrooms, Etc. the Battery Replacement Process is Simple, Normal Use Requires the Installation of a No.7 Dry Battery. the Magnetic Function Behind Design, Which Allows It Can be Easily Put on the Wall or Oven, It Also Can be Put on the Table with a Stand. You Can Print the Logo You Like. the Price for 3000-5000pcs is Based on Sea Freight.